Jacob o



(No Model.)

E. BAIRRATT.

FLUID PRESSURE GAE BRAKE. No; 283,368. Patented Aug. 21, 188s.

N4 P11585 Phdwulhnguphn. vlamuqton. llc.

UNITED STATES HENRY RARRATT,

FLUI D-PRESSURE CAR-BRAKE.

SPECIFICATION forming partbf Letters Patent No. 283,368, dated August 21, 1883.

' Application filed February 5, 1883. (No model.)

.T 0 al?, 1,072,971?, t may concern:

Be it known that I, HENRY BARRATT, of the eity and county of York, State of Pennsylvania, have invented certain Improvements in Fluid-Pressure Car-Brakes, of which the following is a specification. y

Y My invention relates to that class of oarbralres in which the pressure of air, steam, or other duid is made the means of applying the brakes; and my inventionoonsists in certain appliances, described hereinafter, whereby to avoidthe use of ordinary bars, levers, and rods employed for communicating motion to the brake-shoes.

In the drawings, Figure l is a sectional elevation ofsufeient of a railway-car to illustrate my improvement. Fig. 2 is a longitudinal section of one oi' the trucks enlarged. Fig. 3 is a plan view of Fig. 2 in part.`

The ear -body is supported by the usual trucks, each of which has a frame vof any ordinary construction. As shown, there is a central cross-beam, A, from whieh the brake-l e, arranged opposite the inner sides of the 'f brake-beams D.

With the Center of eaehA cylinder communieates a tube, F, which is connected by a ilexible pipe, f, to a tube, G, leading to a reservoir, H, upon the oar, or upon the locomotive or any other convenientplace, and supplied in any well-known way with air, steam, or water, or other iiuid under pressure, suitable Cooks being provided whereby the engineer or brakeman may transmit the pressure of the fluid at will to the cylinders E, or remove the pressure therefrom.

Vhen the pressure is brought upon the fluid .1rl

in the cylinder, the pistons 'it' will be forced outward, and the brake-beams D will be earried toward the wheels until the shoes are pressed rmly against the latter, in which oon- 'dition they will remain until the pressure is 51 removed, and the weight of the beams and appurtenances will carry the shoes away from the wheels and bring the pistons together.

It will be seen that by this construction and arrangement vof devices I dispense with the 5 levers, and rods and Chains, pulleys, and simi lar appliances heretofore used, and secure a direct application of the pressure to the brakes, that the power can be transmitted to the or dinary pivoted trucks through the medium of 6( the ieXible connecting-pipe f, `and that any number of cylinders to secure the desired result may be simultaneously supplied with the motor-fluid from a single source.

The combination, with the trucks pivoted to a ear, of cylinders mounted thereon and provided with pistons and rods arranged and connected to operate the brake-shoes, supplypipes G, and flexible pipes f, connecting said 7c D. BEAvRRsoN, T. C. STRQMAN. 

